Mask device with blower

A - Human Necessities – 62 – B

Patent

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Details

A62B 9/00 (2006.01) A62B 18/10 (2006.01) F16K 15/06 (2006.01) F16K 37/00 (2006.01)

Patent

CA 2664973

A mask device with a blower has an alarm sensor (15) for outputting a signal by detecting without contact a position (d2) of an exhaust valve (7) after its movement that corresponds to a reduction in the inner pressure of a surface body to a level lower than an external air pressure occurring in air intake. An alarm device is activated by the signal from the alarm sensor (15).

L'invention concerne un dispositif de masque avec une soufflante. Un dispositif de masque avec une soufflante présente un détecteur d'alarme (15) pour émettre un signal par détection sans contact d'une position (d2) d'une soupape d'échappement (7) après son mouvement correspondant à une réduction de la pression interne d'un corps de surface jusqu'à un taux inférieur à une pression de l'air externe se produisant dans une admission d'air. Un dispositif d'alarme est activé par le signal provenant du détecteur d'alarme (15).

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